Roger wrote:

Hmmmm at 30 GPH per side, (those little engines use a lot of fuel)
That's about 5 minutes total . Yah outta be able to make some where
around 5,000 to 10,000 feet before flame out. Gas is needed for
climb, but optional for landing.

Wow, that RC/B52 had 8 of them... Seems excessive, without going back to
research it on the manufacters website for a looksee...