March 20 (Reuters) - Shares in German defence supplier

Vincorion jumped about 13.5% on their Frankfurt market

debut on Friday, suggesting that solid investor demand carried

through from a multiple times oversubscribed initial public

offering.

The stock opened at 19.30 euros versus an offer price of 17

euros, giving the maker of power systems for tanks and air

defence a market value of about 980 million euros ($1.13

billion), compared with roughly 850 million euros at listing.

The flotation, one of a number of European defence IPOs

planned this year, comes amid strong investor demand for

companies that tap into rising military spending. The order book

was covered multiple times within days of launch, according to

underwriters.

Private equity firm and major Vincorion shareholder Star

Capital sold up to 20.3 million shares at a fixed price of 17

euros apiece or for about 345 million euros in total.

Cornerstone investors in the transaction, including

Fidelity, Invesco ( IVZ ) and T. Rowe Price, had committed to purchasing

roughly a third of the shares.

($1 = 0.8637 euros)